How to Do a Trademark Search Before You File

Published by the Registry Consulting team · How we researchSources linked in this guideNot a law firm · no legal adviceTalk to a trademark attorney

Updated November 1, 2026

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Registry Consulting is an independent information site, not a law firm, and does not give legal advice. Guides are general information about U.S. trademark law.

Quick answer: Search the USPTO's free trademark search system for identical and similar marks in related goods and services, including spelling variations and sound-alikes. Also search the web, state registers and marketplaces, because unregistered marks can have rights too.

A search is the cheapest way to avoid a refusal, or worse, a dispute after you've built a brand.

What to search for

The exact name
Alternate spellings, plurals and sound-alikes
The name with and without spaces or hyphens
Translations of foreign words
Similar marks in related classes, not just your own

Where to search

Source	Why it matters
USPTO trademark search	Federal applications and registrations
State trademark registers	Some businesses only register at the state level
Search engines, app stores, marketplaces	Common-law (unregistered) users can have rights in their area
Domain and social handles	Practical availability for your brand

Want a professional to look at your mark?
Request a free call with a trademark attorney or legal-service partner. Talk to an attorney

How likelihood of confusion works

Examiners weigh how similar the marks look, sound and feel, and how related the goods or services are. Identical names can coexist for unrelated products; slightly different names can conflict for the same products.

When to get a professional search

If you are investing heavily in a brand, a comprehensive search and an attorney's opinion can catch risks that a basic database search misses.

This guide is general information, not legal advice. Trademark rules and fees change; confirm current details on the USPTO website or with a licensed attorney.

Frequently asked questions

Is the USPTO trademark search free?

Yes. The USPTO provides a free online search system for federal trademark applications and registrations.

Does a clear search guarantee approval?

No. An examining attorney may still find a conflict or another reason to refuse.